/* gtkellview.c * Copyright (C) 2002, 2003 Kristian Rietveld * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "config.h" #include #include "gtkcellview.h" #include "gtkcelllayout.h" #include "gtkcellareabox.h" #include "gtkintl.h" #include "gtkcellrenderertext.h" #include "gtkcellrendererpixbuf.h" #include "gtkprivate.h" #include "gtkorientable.h" #include #include "gtkbuildable.h" /** * SECTION:gtkcellview * @Short_description: A widget displaying a single row of a GtkTreeModel * @Title: GtkCellView * * A #GtkCellView displays a single row of a #GtkTreeModel using a #GtkCellArea * and #GtkCellAreaContext. A #GtkCellAreaContext can be provided to the * #GtkCellView at construction time in order to keep the cellview in context * of a group of cell views, this ensures that the renderers displayed will * be properly aligned with eachother (like the aligned cells in the menus * of #GtkComboBox). * * #GtkCellView is #GtkOrientable in order to decide in which orientation * the underlying #GtkCellAreaContext should be allocated. Taking the #GtkComboBox * menu as an example, cellviews should be oriented horizontally if the menus are * listed top-to-bottom and thus all share the same width but may have separate * individual heights (left-to-right menus should be allocated vertically since * they all share the same height but may have variable widths). */ static GObject *gtk_cell_view_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_properties); static void gtk_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void gtk_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gtk_cell_view_finalize (GObject *object); static void gtk_cell_view_dispose (GObject *object); static void gtk_cell_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_cell_view_draw (GtkWidget *widget, cairo_t *cr); static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, gchar *property, GValue *value); static void gtk_cell_view_set_cell_data (GtkCellView *cell_view); /* celllayout */ static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface); static GtkCellArea *gtk_cell_view_cell_layout_get_area (GtkCellLayout *layout); /* buildable */ static void gtk_cell_view_buildable_init (GtkBuildableIface *iface); static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data); static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data); static void gtk_cell_view_get_preferred_width (GtkWidget *widget, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_preferred_height (GtkWidget *widget, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget, gint avail_size, gint *minimum_size, gint *natural_size); static void context_size_changed_cb (GtkCellAreaContext *context, GParamSpec *pspec, GtkWidget *view); static void row_changed_cb (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, GtkCellView *view); struct _GtkCellViewPrivate { GtkTreeModel *model; GtkTreeRowReference *displayed_row; GtkCellArea *area; GtkCellAreaContext *context; GtkOrientation orientation; GdkRGBA background; gboolean background_set; gulong size_changed_id; gulong row_changed_id; guint32 draw_sensitive : 1; guint32 fit_model : 1; }; static GtkBuildableIface *parent_buildable_iface; enum { PROP_0, PROP_ORIENTATION, PROP_BACKGROUND, PROP_BACKGROUND_GDK, PROP_BACKGROUND_RGBA, PROP_BACKGROUND_SET, PROP_MODEL, PROP_CELL_AREA, PROP_CELL_AREA_CONTEXT, PROP_DRAW_SENSITIVE, PROP_FIT_MODEL }; G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT, gtk_cell_view_cell_layout_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_cell_view_buildable_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL)); static void gtk_cell_view_class_init (GtkCellViewClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); gobject_class->constructor = gtk_cell_view_constructor; gobject_class->get_property = gtk_cell_view_get_property; gobject_class->set_property = gtk_cell_view_set_property; gobject_class->finalize = gtk_cell_view_finalize; gobject_class->dispose = gtk_cell_view_dispose; widget_class->draw = gtk_cell_view_draw; widget_class->size_allocate = gtk_cell_view_size_allocate; widget_class->get_preferred_width = gtk_cell_view_get_preferred_width; widget_class->get_preferred_height = gtk_cell_view_get_preferred_height; widget_class->get_preferred_width_for_height = gtk_cell_view_get_preferred_width_for_height; widget_class->get_preferred_height_for_width = gtk_cell_view_get_preferred_height_for_width; /* properties */ g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation"); g_object_class_install_property (gobject_class, PROP_BACKGROUND, g_param_spec_string ("background", P_("Background color name"), P_("Background color as a string"), NULL, GTK_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_BACKGROUND_GDK, g_param_spec_boxed ("background-gdk", P_("Background color"), P_("Background color as a GdkColor"), GDK_TYPE_COLOR, GTK_PARAM_READWRITE)); /** * GtkCellView:background-rgba * * The background color as a #GdkRGBA * * Since: 3.0 */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_RGBA, g_param_spec_boxed ("background-rgba", P_("Background RGBA color"), P_("Background color as a GdkRGBA"), GDK_TYPE_RGBA, GTK_PARAM_READWRITE)); /** * GtkCellView:model * * The model for cell view * * since 2.10 */ g_object_class_install_property (gobject_class, PROP_MODEL, g_param_spec_object ("model", P_("CellView model"), P_("The model for cell view"), GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE)); /** * GtkCellView:cell-area * * The #GtkCellArea rendering cells * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_CELL_AREA, g_param_spec_object ("cell-area", P_("Cell Area"), P_("The GtkCellArea used to layout cells"), GTK_TYPE_CELL_AREA, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GtkCellView:cell-area-context * * The #GtkCellAreaContext used to compute the geometry of the cell view. * * A group of cell views can be assigned the same context in order to * ensure the sizes and cell alignments match across all the views with * the same context. * * #GtkComboBox menus uses this to assign the same context to all cell views * in the menu items for a single menu (each submenu creates it's own * context since the size of each submenu does not depend on parent * or sibling menus). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_CELL_AREA_CONTEXT, g_param_spec_object ("cell-area-context", P_("Cell Area Context"), P_("The GtkCellAreaContext used to " "compute the geometry of the cell view"), GTK_TYPE_CELL_AREA_CONTEXT, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GtkCellView:draw-sensitive * * Whether all cells should be draw as sensitive for this view regardless * of the actual cell properties (used to make menus with submenus appear * sensitive when the items in submenus might be insensitive). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_DRAW_SENSITIVE, g_param_spec_boolean ("draw-sensitive", P_("Draw Sensitive"), P_("Whether to force cells to be drawn in a " "sensitive state"), FALSE, GTK_PARAM_READWRITE)); /** * GtkCellView:fit-model * * Whether the view should request enough space to always fit * the size of every row in the model (used by the combo box to * ensure the combo box size doesnt change when different items * are selected). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_FIT_MODEL, g_param_spec_boolean ("fit-model", P_("Fit Model"), P_("Whether to request enough space for " "every row in the model"), FALSE, GTK_PARAM_READWRITE)); #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE)) ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET, P_("Background set"), P_("Whether this tag affects the background color")); g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate)); } static void gtk_cell_view_buildable_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->add_child = _gtk_cell_layout_buildable_add_child; iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start; iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end; } static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface) { iface->get_area = gtk_cell_view_cell_layout_get_area; } static GObject * gtk_cell_view_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_properties) { GObject *object; GtkCellView *view; GtkCellViewPrivate *priv; object = G_OBJECT_CLASS (gtk_cell_view_parent_class)->constructor (type, n_construct_properties, construct_properties); view = GTK_CELL_VIEW (object); priv = view->priv; if (!priv->area) { GtkCellArea *area = gtk_cell_area_box_new (); priv->area = g_object_ref_sink (area); } if (!priv->context) priv->context = gtk_cell_area_create_context (priv->area); priv->size_changed_id = g_signal_connect (priv->context, "notify", G_CALLBACK (context_size_changed_cb), view); return object; } static void gtk_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkCellView *view = GTK_CELL_VIEW (object); switch (param_id) { case PROP_ORIENTATION: g_value_set_enum (value, view->priv->orientation); break; case PROP_BACKGROUND_GDK: { GdkColor color; color.red = (guint) (view->priv->background.red * 65535); color.green = (guint) (view->priv->background.green * 65535); color.blue = (guint) (view->priv->background.blue * 65535); color.pixel = 0; g_value_set_boxed (value, &color); } break; case PROP_BACKGROUND_RGBA: g_value_set_boxed (value, &view->priv->background); break; case PROP_BACKGROUND_SET: g_value_set_boolean (value, view->priv->background_set); break; case PROP_MODEL: g_value_set_object (value, view->priv->model); break; case PROP_CELL_AREA: g_value_set_object (value, view->priv->area); break; case PROP_CELL_AREA_CONTEXT: g_value_set_object (value, view->priv->context); break; case PROP_DRAW_SENSITIVE: g_value_set_boolean (value, view->priv->draw_sensitive); break; case PROP_FIT_MODEL: g_value_set_boolean (value, view->priv->fit_model); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GtkCellView *view = GTK_CELL_VIEW (object); GtkCellArea *area; GtkCellAreaContext *context; switch (param_id) { case PROP_ORIENTATION: view->priv->orientation = g_value_get_enum (value); if (view->priv->context) gtk_cell_area_context_reset (view->priv->context); _gtk_orientable_set_style_classes (GTK_ORIENTABLE (object)); break; case PROP_BACKGROUND: { GdkColor color; if (!g_value_get_string (value)) gtk_cell_view_set_background_color (view, NULL); else if (gdk_color_parse (g_value_get_string (value), &color)) gtk_cell_view_set_background_color (view, &color); else g_warning ("Don't know color `%s'", g_value_get_string (value)); g_object_notify (object, "background-gdk"); } break; case PROP_BACKGROUND_GDK: gtk_cell_view_set_background_color (view, g_value_get_boxed (value)); break; case PROP_BACKGROUND_RGBA: gtk_cell_view_set_background_rgba (view, g_value_get_boxed (value)); break; case PROP_BACKGROUND_SET: view->priv->background_set = g_value_get_boolean (value); break; case PROP_MODEL: gtk_cell_view_set_model (view, g_value_get_object (value)); break; case PROP_CELL_AREA: /* Construct-only, can only be assigned once */ area = g_value_get_object (value); if (area) view->priv->area = g_object_ref_sink (area); break; case PROP_CELL_AREA_CONTEXT: /* Construct-only, can only be assigned once */ context = g_value_get_object (value); if (context) view->priv->context = g_object_ref (context); break; case PROP_DRAW_SENSITIVE: gtk_cell_view_set_draw_sensitive (view, g_value_get_boolean (value)); break; case PROP_FIT_MODEL: gtk_cell_view_set_fit_model (view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_cell_view_init (GtkCellView *cellview) { GtkCellViewPrivate *priv; cellview->priv = G_TYPE_INSTANCE_GET_PRIVATE (cellview, GTK_TYPE_CELL_VIEW, GtkCellViewPrivate); priv = cellview->priv; gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE); priv->orientation = GTK_ORIENTATION_HORIZONTAL; } static void gtk_cell_view_finalize (GObject *object) { GtkCellView *cellview = GTK_CELL_VIEW (object); if (cellview->priv->displayed_row) gtk_tree_row_reference_free (cellview->priv->displayed_row); G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object); } static void gtk_cell_view_dispose (GObject *object) { GtkCellView *cellview = GTK_CELL_VIEW (object); gtk_cell_view_set_model (cellview, NULL); if (cellview->priv->area) { g_object_unref (cellview->priv->area); cellview->priv->area = NULL; } if (cellview->priv->context) { g_signal_handler_disconnect (cellview->priv->context, cellview->priv->size_changed_id); g_object_unref (cellview->priv->context); cellview->priv->context = NULL; cellview->priv->size_changed_id = 0; } G_OBJECT_CLASS (gtk_cell_view_parent_class)->dispose (object); } static void gtk_cell_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = cellview->priv; gint alloc_width, alloc_height; gtk_widget_set_allocation (widget, allocation); gtk_cell_area_context_get_allocation (priv->context, &alloc_width, &alloc_height); /* The first cell view in context is responsible for allocating the context at allocate time * (or the cellview has its own context and is not grouped with any other cell views) * * If the cellview is in "fit model" mode, we assume its not in context and needs to * allocate every time. */ if (priv->fit_model) gtk_cell_area_context_allocate (priv->context, allocation->width, allocation->height); else if (alloc_width != allocation->width && priv->orientation == GTK_ORIENTATION_HORIZONTAL) gtk_cell_area_context_allocate (priv->context, allocation->width, -1); else if (alloc_height != allocation->height && priv->orientation == GTK_ORIENTATION_VERTICAL) gtk_cell_area_context_allocate (priv->context, -1, allocation->height); } static void gtk_cell_view_request_model (GtkCellView *cellview, GtkTreeIter *parent, GtkOrientation orientation, gint for_size, gint *minimum_size, gint *natural_size) { GtkCellViewPrivate *priv = cellview->priv; GtkTreeIter iter; gboolean valid; if (!priv->model) return; valid = gtk_tree_model_iter_children (priv->model, &iter, parent); while (valid) { gint min, nat; gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE); if (orientation == GTK_ORIENTATION_HORIZONTAL) { if (for_size < 0) gtk_cell_area_get_preferred_width (priv->area, priv->context, GTK_WIDGET (cellview), &min, &nat); else gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, GTK_WIDGET (cellview), for_size, &min, &nat); } else { if (for_size < 0) gtk_cell_area_get_preferred_height (priv->area, priv->context, GTK_WIDGET (cellview), &min, &nat); else gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, GTK_WIDGET (cellview), for_size, &min, &nat); } *minimum_size = MAX (min, *minimum_size); *natural_size = MAX (nat, *natural_size); /* Recurse into children when they exist */ gtk_cell_view_request_model (cellview, &iter, orientation, for_size, minimum_size, natural_size); valid = gtk_tree_model_iter_next (priv->model, &iter); } } static void gtk_cell_view_get_preferred_width (GtkWidget *widget, gint *minimum_size, gint *natural_size) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = cellview->priv; g_signal_handler_block (priv->context, priv->size_changed_id); if (priv->fit_model) { gint min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, -1, &min, &nat); } else { if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_width (priv->area, priv->context, widget, NULL, NULL); } gtk_cell_area_context_get_preferred_width (priv->context, minimum_size, natural_size); g_signal_handler_unblock (priv->context, priv->size_changed_id); } static void gtk_cell_view_get_preferred_height (GtkWidget *widget, gint *minimum_size, gint *natural_size) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = cellview->priv; g_signal_handler_block (priv->context, priv->size_changed_id); if (priv->fit_model) { gint min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, -1, &min, &nat); } else { if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_height (priv->area, priv->context, widget, NULL, NULL); } gtk_cell_area_context_get_preferred_height (priv->context, minimum_size, natural_size); g_signal_handler_unblock (priv->context, priv->size_changed_id); } static void gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget, gint for_size, gint *minimum_size, gint *natural_size) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = cellview->priv; if (priv->fit_model) { gint min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, for_size, &min, &nat); *minimum_size = min; *natural_size = nat; } else { if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, widget, for_size, minimum_size, natural_size); } } static void gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget, gint for_size, gint *minimum_size, gint *natural_size) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = cellview->priv; if (priv->fit_model) { gint min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, for_size, &min, &nat); *minimum_size = min; *natural_size = nat; } else { if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, widget, for_size, minimum_size, natural_size); } } static gboolean gtk_cell_view_draw (GtkWidget *widget, cairo_t *cr) { GtkCellView *cellview; GdkRectangle area; GtkCellRendererState state; cellview = GTK_CELL_VIEW (widget); /* render cells */ area.x = 0; area.y = 0; area.width = gtk_widget_get_allocated_width (widget); area.height = gtk_widget_get_allocated_height (widget); /* "blank" background */ if (cellview->priv->background_set) { gdk_cairo_rectangle (cr, &area); gdk_cairo_set_source_rgba (cr, &cellview->priv->background); cairo_fill (cr); } /* set cell data (if available) */ if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); else if (cellview->priv->model) return FALSE; if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_PRELIGHT) state = GTK_CELL_RENDERER_PRELIT; else if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_INSENSITIVE) state = GTK_CELL_RENDERER_INSENSITIVE; else state = 0; /* Render the cells */ gtk_cell_area_render (cellview->priv->area, cellview->priv->context, widget, cr, &area, &area, state, FALSE); return FALSE; } static void gtk_cell_view_set_cell_data (GtkCellView *cell_view) { GtkTreeIter iter; GtkTreePath *path; g_return_if_fail (cell_view->priv->displayed_row != NULL); path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row); if (!path) return; gtk_tree_model_get_iter (cell_view->priv->model, &iter, path); gtk_tree_path_free (path); gtk_cell_area_apply_attributes (cell_view->priv->area, cell_view->priv->model, &iter, FALSE, FALSE); if (cell_view->priv->draw_sensitive) { GList *l, *cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view->priv->area)); for (l = cells; l; l = l->next) { GObject *renderer = l->data; g_object_set (renderer, "sensitive", TRUE, NULL); } g_list_free (cells); } } /* GtkCellLayout implementation */ static GtkCellArea * gtk_cell_view_cell_layout_get_area (GtkCellLayout *layout) { GtkCellView *cellview = GTK_CELL_VIEW (layout); return cellview->priv->area; } /* GtkBuildable implementation */ static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data) { if (parent_buildable_iface->custom_tag_start && parent_buildable_iface->custom_tag_start (buildable, builder, child, tagname, parser, data)) return TRUE; return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child, tagname, parser, data); } static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data) { if (_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data)) return; else if (parent_buildable_iface->custom_tag_end) parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname, data); } static void context_size_changed_cb (GtkCellAreaContext *context, GParamSpec *pspec, GtkWidget *view) { if (!strcmp (pspec->name, "minimum-width") || !strcmp (pspec->name, "natural-width") || !strcmp (pspec->name, "minimum-height") || !strcmp (pspec->name, "natural-height")) gtk_widget_queue_resize (view); } static void row_changed_cb (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, GtkCellView *view) { GtkTreePath *row_path; if (view->priv->displayed_row) { row_path = gtk_tree_row_reference_get_path (view->priv->displayed_row); if (row_path) { /* Resize everything in our context if our row changed */ if (gtk_tree_path_compare (row_path, path) == 0) gtk_cell_area_context_reset (view->priv->context); gtk_tree_path_free (row_path); } } } /** * gtk_cell_view_new: * * Creates a new #GtkCellView widget. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new (void) { GtkCellView *cellview; cellview = g_object_new (gtk_cell_view_get_type (), NULL); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_context: * @area: the #GtkCellArea to layout cells * @context: the #GtkCellAreaContext in which to calculate cell geometry * * Creates a new #GtkCellView widget with a specific #GtkCellArea * to layout cells and a specific #GtkCellAreaContext. * * Specifying the same context for a handfull of cells lets * the underlying area synchronize the geometry for those cells, * in this way alignments with cellviews for other rows are * possible. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_context (GtkCellArea *area, GtkCellAreaContext *context) { g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL); g_return_val_if_fail (context == NULL || GTK_IS_CELL_AREA_CONTEXT (context), NULL); return (GtkWidget *)g_object_new (GTK_TYPE_CELL_VIEW, "cell-area", area, "cell-area-context", context, NULL); } /** * gtk_cell_view_new_with_text: * @text: the text to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererText * to it, and makes its show @text. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_text (const gchar *text) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, G_TYPE_STRING); g_value_set_string (&value, text); gtk_cell_view_set_value (cellview, renderer, "text", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_markup: * @markup: the text to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererText * to it, and makes it show @markup. The text can be * marked up with the Pango text * markup language. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_markup (const gchar *markup) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, G_TYPE_STRING); g_value_set_string (&value, markup); gtk_cell_view_set_value (cellview, renderer, "markup", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_pixbuf: * @pixbuf: the image to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf * to it, and makes its show @pixbuf. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_pixbuf_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, GDK_TYPE_PIXBUF); g_value_set_object (&value, pixbuf); gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_set_value: * @cell_view: a #GtkCellView widget * @renderer: one of the renderers of @cell_view * @property: the name of the property of @renderer to set * @value: the new value to set the property to * * Sets a property of a cell renderer of @cell_view, and * makes sure the display of @cell_view is updated. * * Since: 2.6 */ static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, gchar *property, GValue *value) { g_object_set_property (G_OBJECT (renderer), property, value); /* force resize and redraw */ gtk_widget_queue_resize (GTK_WIDGET (cell_view)); gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_set_model: * @cell_view: a #GtkCellView * @model: (allow-none): a #GtkTreeModel * * Sets the model for @cell_view. If @cell_view already has a model * set, it will remove it before setting the new model. If @model is * %NULL, then it will unset the old model. * * Since: 2.6 */ void gtk_cell_view_set_model (GtkCellView *cell_view, GtkTreeModel *model) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (cell_view->priv->model) { g_signal_handler_disconnect (cell_view->priv->model, cell_view->priv->row_changed_id); cell_view->priv->row_changed_id = 0; if (cell_view->priv->displayed_row) gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = NULL; g_object_unref (cell_view->priv->model); } cell_view->priv->model = model; if (cell_view->priv->model) { g_object_ref (cell_view->priv->model); cell_view->priv->row_changed_id = g_signal_connect (cell_view->priv->model, "row-changed", G_CALLBACK (row_changed_cb), cell_view); } } /** * gtk_cell_view_get_model: * @cell_view: a #GtkCellView * * Returns the model for @cell_view. If no model is used %NULL is * returned. * * Returns: (transfer none): a #GtkTreeModel used or %NULL * * Since: 2.16 **/ GtkTreeModel * gtk_cell_view_get_model (GtkCellView *cell_view) { g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); return cell_view->priv->model; } /** * gtk_cell_view_set_displayed_row: * @cell_view: a #GtkCellView * @path: (allow-none): a #GtkTreePath or %NULL to unset. * * Sets the row of the model that is currently displayed * by the #GtkCellView. If the path is unset, then the * contents of the cellview "stick" at their last value; * this is not normally a desired result, but may be * a needed intermediate state if say, the model for * the #GtkCellView becomes temporarily empty. * * Since: 2.6 **/ void gtk_cell_view_set_displayed_row (GtkCellView *cell_view, GtkTreePath *path) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model)); if (cell_view->priv->displayed_row) gtk_tree_row_reference_free (cell_view->priv->displayed_row); if (path) { cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); } else cell_view->priv->displayed_row = NULL; /* force resize and redraw */ gtk_widget_queue_resize (GTK_WIDGET (cell_view)); gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_get_displayed_row: * @cell_view: a #GtkCellView * * Returns a #GtkTreePath referring to the currently * displayed row. If no row is currently displayed, * %NULL is returned. * * Returns: the currently displayed row or %NULL * * Since: 2.6 */ GtkTreePath * gtk_cell_view_get_displayed_row (GtkCellView *cell_view) { g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); if (!cell_view->priv->displayed_row) return NULL; return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row); } /** * gtk_cell_view_get_size_of_row: * @cell_view: a #GtkCellView * @path: a #GtkTreePath * @requisition: (out): return location for the size * * Sets @requisition to the size needed by @cell_view to display * the model row pointed to by @path. * * Return value: %TRUE * * Since: 2.6 * * Deprecated: 3.0: Combo box formerly used this to calculate the * sizes for cellviews, now you can achieve this by either using * the #GtkCellView:fit-model property or by setting the currently * displayed row of the #GtkCellView and using gtk_widget_get_preferred_size(). */ gboolean gtk_cell_view_get_size_of_row (GtkCellView *cell_view, GtkTreePath *path, GtkRequisition *requisition) { GtkTreeRowReference *tmp; GtkRequisition req; g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); g_return_val_if_fail (path != NULL, FALSE); tmp = cell_view->priv->displayed_row; cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); gtk_widget_get_preferred_width (GTK_WIDGET (cell_view), &req.width, NULL); gtk_widget_get_preferred_height_for_width (GTK_WIDGET (cell_view), req.width, &req.height, NULL); gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = tmp; if (requisition) *requisition = req; return TRUE; } /** * gtk_cell_view_set_background_color: * @cell_view: a #GtkCellView * @color: the new background color * * Sets the background color of @view. * * Since: 2.6 */ void gtk_cell_view_set_background_color (GtkCellView *cell_view, const GdkColor *color) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); if (color) { if (!cell_view->priv->background_set) { cell_view->priv->background_set = TRUE; g_object_notify (G_OBJECT (cell_view), "background-set"); } cell_view->priv->background.red = color->red / 65535.; cell_view->priv->background.green = color->green / 65535.; cell_view->priv->background.blue = color->blue / 65535.; cell_view->priv->background.alpha = 1; } else { if (cell_view->priv->background_set) { cell_view->priv->background_set = FALSE; g_object_notify (G_OBJECT (cell_view), "background-set"); } } gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_set_background_rgba: * @cell_view: a #GtkCellView * @rgba: the new background color * * Sets the background color of @cell_view. * * Since: 3.0 */ void gtk_cell_view_set_background_rgba (GtkCellView *cell_view, const GdkRGBA *rgba) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); if (rgba) { if (!cell_view->priv->background_set) { cell_view->priv->background_set = TRUE; g_object_notify (G_OBJECT (cell_view), "background-set"); } cell_view->priv->background = *rgba; } else { if (cell_view->priv->background_set) { cell_view->priv->background_set = FALSE; g_object_notify (G_OBJECT (cell_view), "background-set"); } } gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_get_draw_sensitive: * @cell_view: a #GtkCellView * * Gets whether @cell_view is configured to draw all of it's * cells in a sensitive state. * * Return value: whether @cell_view draws all of it's * cells in a sensitive state * * Since: 3.0 */ gboolean gtk_cell_view_get_draw_sensitive (GtkCellView *cell_view) { GtkCellViewPrivate *priv; g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); priv = cell_view->priv; return priv->draw_sensitive; } /** * gtk_cell_view_set_draw_sensitive: * @cell_view: a #GtkCellView * @draw_sensitive: whether to draw all cells in a sensitive state. * * Sets whether @cell_view should draw all of it's * cells in a sensitive state, this is used by #GtkComboBox menus * to ensure that rows with insensitive cells that contain * children appear sensitive in the parent menu item. * * Since: 3.0 */ void gtk_cell_view_set_draw_sensitive (GtkCellView *cell_view, gboolean draw_sensitive) { GtkCellViewPrivate *priv; g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); priv = cell_view->priv; if (priv->draw_sensitive != draw_sensitive) { priv->draw_sensitive = draw_sensitive; g_object_notify (G_OBJECT (cell_view), "draw-sensitive"); } } /** * gtk_cell_view_get_fit_model: * @cell_view: a #GtkCellView * * Gets whether @cell_view is configured to request space * to fit the entire #GtkTreeModel. * * Return value: whether @cell_view requests space to fit * the entire #GtkTreeModel. * * Since: 3.0 */ gboolean gtk_cell_view_get_fit_model (GtkCellView *cell_view) { GtkCellViewPrivate *priv; g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); priv = cell_view->priv; return priv->fit_model; } /** * gtk_cell_view_set_fit_model: * @cell_view: a #GtkCellView * @fit_model: whether @cell_view should request space for the whole model. * * Sets whether @cell_view should request space to fit the entire #GtkTreeModel. * * This is used by #GtkComboBox to ensure that the cell view displayed on * the combo box's button always gets enough space and does not resize * when selection changes. * * Since: 3.0 */ void gtk_cell_view_set_fit_model (GtkCellView *cell_view, gboolean fit_model) { GtkCellViewPrivate *priv; g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); priv = cell_view->priv; if (priv->fit_model != fit_model) { priv->fit_model = fit_model; gtk_cell_area_context_reset (cell_view->priv->context); g_object_notify (G_OBJECT (cell_view), "fit-model"); } }